Die parallele run van GFS draait al sinds 22 december bij NCEP. Meteociel is veel te laat geweest, de testperiode is dus 50 dagen. Op 10 februari worden deze nieuwe versie van het model en initialisatie operationeel.
De wijzigingen:
1. Inclusion of METOP IASI data
2. Use of variational qc
3. Change in land/snow/ice skin temperature variance
4. Flow dependent reweighting of background error variances
5. Addition of background error covariance input file
6. Reduction of number of airs water vapor changels used
7. Use of new version and coefficients for community
radiative transfer model
8. Modification of height assignment for height based wind
observations
9. Modification of surface land use file to remove a few
permanent (~12) glacial points to improve surface
temperature forecasts over those points.
Gr. Ben
De wijzigingen:
1. Inclusion of METOP IASI data
2. Use of variational qc
3. Change in land/snow/ice skin temperature variance
4. Flow dependent reweighting of background error variances
5. Addition of background error covariance input file
6. Reduction of number of airs water vapor changels used
7. Use of new version and coefficients for community
radiative transfer model
8. Modification of height assignment for height based wind
observations
9. Modification of surface land use file to remove a few
permanent (~12) glacial points to improve surface
temperature forecasts over those points.
Gr. Ben
Bericht laatst bijgewerkt: 17-01-2009 18:54
